查詢結果分析
相關文獻
- Approximate Dynamic Crack Frictional Contact Analysis for 3D Structure
- 無奇異性之高階邊界元素法--直接法與間接法之比較
- A High Order Panel Method for Practical Ship Waves Calculation
- Comparison of Time Domain BEM for 2D Elastodynamic
- 不對稱楔形體之水面衝擊
- An Outline of Adaptive Computation: Theory, Implementation, and Applications
- A Dislocation and Point Force Approach to the Boundary Element Method for Mixed Mode Crack Analysis of Plane Anisotropic Solids
- Homogenization of Nonlinear Composites Using Transformation Field Analysis
- A Nonsingular Integral Formulation for the Helmholtz Elgenproblems of a Circular Domain
- Fracture Propagation of Anisotropic Plates by the Boundary Element Method
頁籤選單縮合
題 名 | Approximate Dynamic Crack Frictional Contact Analysis for 3D Structure=三維結構物於動態的裂縫摩擦接觸分析 |
---|---|
作 者 | 文丕華; | 書刊名 | 中國工程學刊 |
卷 期 | 22:6 1999.11[民88.11] |
頁 次 | 頁785-793 |
分類號 | 440.13 |
關鍵詞 | 邊界元素法; 接觸力學; 斷裂力學; 動應力強度; Boundary element method; Contact mechanics; Fracture mechanics; Dynamic stress intensity factors; |
語 文 | 英文(English) |
中文摘要 | 在本文中我們發展出對偶邊界元素的架構來探討當受到動磨擦負載時裂縫表面接 觸的問題。藉由三個假設我們可將三維非線性動力問題處理成線性問題。而對偶邊界積分方 程的狀態變量為拉氏(Laplace)轉換域的外圍邊界位移,外圍邊界曳引力與裂縫面位移不連續 量。並且採用杜賓(Durbin)的拉氏反轉換法及藉由裂縫開口的位移來決定應力強度因子。本 文並探討一長方形含有一個傾斜圓形裂縫棒受階梯負載時的反應。同時詳細的分析在不同彈 性波對應力強度因子K□(t)及K□(t)的影響。 |
英文摘要 | In this paper the dual boundary element formulation is developed to study crack surface contact problem with friction dynamic loads. The nonlinear three0dimensional dynamic problem can be treated as linear problem by three assumptions. The dual boundary integral equations are given in the Laplace transform domain with the boundary varibles of displacement and traction on the external boundary and displacement discontinuities on the crack surface. Durbin's Laplace tranfrom inversioin method is used and the dynamic stress intensity factors are determined by crack opening displacement. A rectangular bar containing a slant circular crack under a pressure Heaviside load is studied. The influrence of different elasticity waves on the dynamic stree intensity factors K□(t) and K□ (t) are analysed in detail. |
本系統中英文摘要資訊取自各篇刊載內容。